Elongate ptfe elements and articles made thereof
CA 2241664 C · Owner: Blass, Jacob Moses · Inventors: Blass, Jacob Moses
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An elongate PTFE (polytetrafluoroethylene) element is formed having a PTFE , matrix and containing a water soluble additive material in the form of solid particles distributed within the matrix. The PTFE elements may be twisted or untwisted tape and a plurality of elements, may be twisted together to form a fiber. Such elements or fibers may be formed into articles for use in dentistry, such as dental floss or, into medical sutures, woven filter mesh and other non-dental articles.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed December 24, 1996 and granted November 6, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 24, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 24, 2018.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.